Unfortunately, I can not understand the positive reviews previous. In the first test (video, continuous shooting, flash) in my Alpha 35 can "watch the Fallen" the battery indicator. The capacity seems to be significantly lower than the original Sony Battery NP-FW50. Significantly, no capacity on the battery is printed. In addition, the battery will discharge very quickly even when not in use. I am already wondering when the charging time is significantly shorter failed (60 min.) Than those indicated by Sony 250 Min.
And yes, the battery fits mechanically as well as the original. Nevertheless, because of insufficient electrical properties just a star and immediate return.